CN104265314B - The multiple degrees of freedom switching device of advanced rig in shield excavation machine - Google Patents

The multiple degrees of freedom switching device of advanced rig in shield excavation machine Download PDF

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Publication number
CN104265314B
CN104265314B CN201410517608.1A CN201410517608A CN104265314B CN 104265314 B CN104265314 B CN 104265314B CN 201410517608 A CN201410517608 A CN 201410517608A CN 104265314 B CN104265314 B CN 104265314B
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China
Prior art keywords
rig
bracket
forward beam
fixture block
advanced
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CN201410517608.1A
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CN104265314A (en
Inventor
王柏松
卓兴建
吴玺
于鹏
张新伟
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China Railway Engineering Equipment Group Co Ltd CREG
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China Railway Engineering Equipment Group Co Ltd CREG
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • E21D9/08Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield

Abstract

In shield excavation machine, a multiple degrees of freedom switching device for advanced rig, comprises advanced rig installed part, forward beam assembly, joist, bracket, Change-over frame, bottom bracket and rig interface; Described advanced rig installed part is connected with forward beam assembly; Described joist is positioned at the below of forward beam assembly, and forward beam assembly and joist are slidably connected; Be articulated and connected with Change-over frame in the middle part of described bracket; Described Change-over frame and bottom bracket are articulated and connected, and are provided with pitching oil cylinder between bracket afterbody and bottom bracket; Described rig interface and bottom bracket are rotationally connected.By being 180 degree with pipe sheet assembling chain-drive section, position arranges rig interface in the present invention, advanced rig is arranged on the movable collar tie beam of duct piece assembling machine, make shield excavation machine no matter tunnel position at straight line or tunnel position at curve, advance drilling machine can have the ability of beating shield excavation machine periphery inclined hole.The present invention controls each degree of freedom, advanced rig can be made accurately in place, carry out creeping into of advanced hole.

Description

The multiple degrees of freedom switching device of advanced rig in shield excavation machine
Technical field
The present invention relates to subterranean tunnel shield excavation machine, especially relate to the drilling equipment in shield excavation machine, specifically for advanced rig provides a kind of multiple degrees of freedom switching device reliably.
Background technology
Utilizing shield excavation machine to carry out in subterranean tunnel tunneling construction, because the geology of underground, front is not visible, so need rigging up to carry out Advance Drilling, or grouting and reinforcing is carried out to front Unfavorable geology.The advanced hole site of shield excavation machine is positioned at the periphery of shield structure housing, and to tunnel outer incline.Because the structure space of shield excavation machine inside is very narrow, bring certain difficulty to the installation of advanced rig.In some shield excavation machines, rig is arranged on the assembled head of duct piece assembling machine, so often causes the damage of the assembled head of duct piece assembling machine, result in greater loss.
Summary of the invention
The technical problem to be solved in the present invention is to provide the multiple degrees of freedom switching device of advanced rig in a kind of shield excavation machine, advanced rig is arranged on the movable collar tie beam of duct piece assembling machine by this device, thus making shield excavation machine no matter tunnel position at straight line or tunnel position at curve, advanced rig can both have the ability of beating periphery inclined hole.
Technical scheme of the present invention is: the multiple degrees of freedom switching device of advanced rig in a kind of shield excavation machine, comprises advanced rig installed part, forward beam assembly, joist, bracket, Change-over frame, bottom bracket and rig interface; Described advanced rig installed part is positioned at the top of forward beam assembly, and advanced rig installed part is connected with forward beam assembly; Described joist is positioned at the below of forward beam assembly, and forward beam assembly and joist are slidably connected; Described bracket is arranged on the below of joist, and bracket is positioned at the top of Change-over frame, is articulated and connected in the middle part of bracket with Change-over frame; Described Change-over frame and bottom bracket are articulated and connected, and are provided with pitching oil cylinder between bracket afterbody and bottom bracket; Described rig interface is positioned at the below of bottom bracket, and rig interface and bottom bracket are rotationally connected.
Described advanced rig installed part comprises fixture block and first time fixture block on the first base plate, first, and described first base plate is fixedly connected with rig, and on the first base plate, first, fixture block is connected by the second bolt with first time fixture block.
Described forward beam assembly comprises fixture block on forward beam, second, second time fixture block and the second base plate; On described second, fixture block, second time fixture block are connected by the 3rd bolt with the second base plate, and described second base plate is connected with joist by the 4th bolt; The U-shaped profile of described forward beam, is provided with propelling cylinder in U-shaped; Described forward beam is arranged on the below of the first base plate, and forward beam and the first base plate are slidably connected, and forward beam is connected with joist by extending oil cylinder; Described forward beam upper end is arranged on first between fixture block and first time fixture block, and forward beam lower end to be arranged on second between fixture block and second time fixture block.
Described bracket is positioned at the bottom of joist, and bracket comprises tray plate, the first hinge ear and the second hinge ear, and the first hinge ear and the second hinge ear are fixed on tray plate bottom; Described first hinge ear and Change-over frame are articulated and connected, and described second hinge ear and pitching oil cylinder are articulated and connected.
Described bottom bracket is provided with otic placode, the first screwed hole, the second screwed hole, center hole and lateral opening; Described second screwed hole and Change-over frame are hinged, and otic placode and pitching oil cylinder are articulated and connected.
Described rig interface is arranged on the movable collar tie beam of duct piece assembling machine, and rig interface is provided with positioning cylinder, the 3rd screwed hole, the first stiffener, the second stiffener, and positioning cylinder is fixed on the first stiffener, and the second stiffener is arranged on the side of movable collar tie beam; Described positioning cylinder is connected by the 5th bolt with center hole on bottom bracket, and described 3rd screwed hole is connected with lateral opening on bottom bracket by the 6th bolt; Described second stiffener is connected with adjustment screw by the first screwed hole.
By being 180 degree with pipe sheet assembling chain-drive section, position arranges rig interface in the present invention, advanced rig is arranged on the movable collar tie beam of duct piece assembling machine, thus making shield excavation machine no matter tunnel position at straight line or tunnel position at curve, advance drilling machine can have the ability of beating shield excavation machine periphery inclined hole.The movable collar tie beam of the duct piece assembling machine of shield excavation machine has rectilinear movement degree of freedom Z1 and the rotary freedom φ around its axis A1, and rig can be driven to carry out moving linearly and rotating along axis A1.Use Adjustment screw, makes rig have and rotates along axis A5, have degree of freedom ω.During pitching cylinder action, rig is rotated along the axis A4 vertical with axis A5, there is degree of freedom θ.When extending cylinder action, rig is moved linearly along axis A2, there is isolated degree of freedom Z2.During the action of propelling cylinder cylinder, rig is moved linearly along axis A3, there is isolated degree of freedom Z3.The present invention controls each degree of freedom, advanced rig can be made accurately in place, carry out creeping into of advanced hole.
Accompanying drawing explanation
Fig. 1 is axis of no-feathering side of the present invention schematic diagram.
Fig. 2 is front view of the present invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the A-A sectional view of Fig. 1.
Fig. 5 is the B-B sectional view of Fig. 1.
Fig. 6 is the C-C sectional view of Fig. 1.
Fig. 7 is backing board axis of no-feathering side schematic diagram.
Fig. 8 is axis of no-feathering side, collar tie beam joint portion schematic diagram.
In figure: 1 advanced rig installed part, 2 drilling tools, 3 propelling cylinders, 4 card pricker devices, 5 forward beam assemblies, 6 joists, 7 extend oil cylinder, 8 brackets, 9 bearing pins, 10 Change-over frames, 11 first bolts, 12 the 5th bolts, 13 pads, 14 bottom brackets, 15 adjustment screws, 16 pitching oil cylinders, 17 rig interfaces, 18 the 6th bolts.
Detailed description of the invention
The present invention is elaborated below in conjunction with accompanying drawing.
A multiple degrees of freedom switching device for advanced rig in shield excavation machine, as shown in Fig. 1 to 8, comprises advanced rig installed part 1, forward beam assembly 5, joist 6, bracket 8, Change-over frame 10, bottom bracket 14 and rig interface 17.Advanced rig installed part 1 is positioned at the top of forward beam assembly 5, and advanced rig installed part 1 is slidably connected with forward beam assembly 5.Joist 6 is positioned at the below of forward beam assembly 5, and forward beam assembly 5 and joist 6 are slidably connected.Bracket 8 is arranged on the below of joist 6, and bracket 8 is positioned at above Change-over frame 10, and middle part and the Change-over frame 10 of bracket 8 are articulated and connected.Change-over frame 10 and bottom bracket 14 first bolt 11 connect, and are provided with pitching oil cylinder 16 between the afterbody of bracket 8 and bottom bracket 14.Rig interface 17 is arranged on the movable collar tie beam 1701 of duct piece assembling machine, and rig interface 17 and bottom bracket 14 are rotationally connected.
Advanced rig installed part 1 comprises fixture block 103 and first time fixture block 104 on the first base plate 102, first.Rig 101 is fixed on the first base plate 102, and on the first base plate 102, first, fixture block 103 and first time fixture block 104 are connected together by the second bolt 105.Rig 101 front end is provided with drilling tool 2.
Forward beam assembly 5 comprises fixture block 503, second time fixture block 504 and the second base plate 505 on forward beam 501, second.On second, fixture block 503, second time fixture block 504 and the second base plate 505 are connected together by the 3rd bolt 502.Forward beam 501 is arranged on the bottom of the first base plate 102, and is formed with the first base plate 102 and be slidably connected.The U-shaped profile of forward beam 501, is provided with propelling cylinder 3 in U-shaped.When propelling cylinder 3 stretches, forward beam 501 can drive base plate 102 to slide, and drive rig 101 along forward beam 501 direction linear slide, concrete direction is along the axis A3 direction of propelling cylinder 3, and degree of freedom is Z3 simultaneously.Forward beam assembly 5 front end is provided with card pricker device 4, for dismounting drilling tool 2.
Forward beam 501 upper end is arranged on first between fixture block 103 and first time fixture block 104, and forward beam 501 lower end to be arranged on second between fixture block 503 and second time fixture block 504.On first, fixture block 103 and first time fixture block 104 are formed with the slide plane of forward beam 501 upper end respectively and are slidably matched, and on second, fixture block 503 and second time fixture block 504 are formed with the slide plane of forward beam 501 lower end respectively and be slidably matched.Joist 6 is arranged on the below of forward beam 501, and the second base plate 505 is fastenedly connected with joist 6 by the 4th bolt 506, and forward beam 501 can slide relative to joist 6.Be connected with extension oil cylinder 7 on rear side of joist 6, extend oil cylinder 7 other end and be connected with the forward beam 501 of advanced rig installed part 1 bottom.When extending oil cylinder 7 and stretching, drive forward beam assembly 5 linear slide, direction is along the axis A2 direction extending oil cylinder 7.
Bracket 8 is positioned at the below of joist 6, and bracket 8 is positioned at the top of Change-over frame 10.Bracket 8 comprises tray plate 801, first hinge ear 802 and the second hinge ear 803, first cuts with scissors ear 802 and the second hinge ear 803 is fixed on tray plate 801 bottom, and lays respectively at the two ends of tray plate 801.First hinge ear 802 is formed by bearing pin 9 with Change-over frame 10 and is articulated and connected, and the second hinge ear 803 is articulated and connected with pitching oil cylinder 16.When pitching oil cylinder 16 stretches, bracket 8 rotates along axle A4, forms degree of freedom θ.The joist 6 installed above of bracket 8 also synchronous axial system thereupon.
Bottom bracket 14 is provided with otic placode 1401, first screwed hole 1402, second screwed hole 1403, center hole 1404 and lateral opening 1405.First bolt 11 is screwed into the second screwed hole 1403, and bottom bracket 14 and Change-over frame 10 are coupled together.Otic placode 1401 and pitching oil cylinder 16 are formed hinged.Therefore, bracket 8 and bottom bracket 14 link together by pitching oil cylinder 16.Center hole 1404 is arranged on center, and the second screwed hole 1403 is provided with four, and the second screwed hole (1403) is distributed in center hole 1404 surrounding, and lateral opening 1405 in long waist type, and is provided with four, is distributed in the outside of the second screwed hole 1403 and every limit is provided with two.
Rig interface 17 is arranged on the movable collar tie beam 1701 of duct piece assembling machine.Rig interface (17) is provided with positioning cylinder 1702, the 3rd screwed hole 1703, first stiffener 1704, second stiffener 1705, second stiffener 1705 is arranged on the side of movable collar tie beam 1701, and the first stiffener 1704 forms a fixed connection by welding with the second stiffener 1705.Positioning cylinder 1702 is fixed on the first stiffener 1704.Positioning cylinder 1702 is connected by the 5th bolt 12 with center hole 1404 on bottom bracket 14, and the 5th bolt 12 upper end is provided with pad 13.Center hole 1404 forms rotatable cooperation with positioning cylinder 1702, axially relies on pad 13 and the 5th bolt 12 to position.3rd screwed hole 1703 is connected with lateral opening 1405 on bottom bracket 14 by the 6th bolt 18, thus is fixedly connected with bottom bracket 14 by rig interface 17.Adjustment screw 15 is screwed into and passes the first screwed hole 1402, holds out against on the second stiffener 1705.Loosen the 6th bolt 18, turn adjustment screw 15, bottom bracket 14 rotates along axle A5, forms degree of freedom ω, thus advanced rig is rotated along axis A5.When duct piece assembling machine action, movable collar tie beam 1701 can rotate or rectilinear motion along axis A1, forms rotary freedom φ and one-movement-freedom-degree Z1, thus advanced rig can be driven to carry out moving linearly and rotating along axis A1.
Therefore, the present invention controls each degree of freedom above, advanced rig can be made accurately in place, carry out creeping into of advanced hole, thus make the drilling tool 2 on rig 101 carry out rotating, impacting, carry out rock drilling boring.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.

Claims (5)

1. the multiple degrees of freedom switching device of advanced rig in shield excavation machine, is characterized in that: comprise advanced rig installed part (1), forward beam assembly (5), joist (6), bracket (8), Change-over frame (10), bottom bracket (14) and rig interface (17); Described advanced rig installed part (1) is positioned at the top of forward beam assembly (5), and advanced rig installed part (1) is connected with forward beam assembly (5); Described joist (6) is positioned at the below of forward beam assembly (5), and forward beam assembly (5) and joist (6) are slidably connected; Described bracket (8) is arranged on the below of joist (6), and bracket (8) is positioned at the top of Change-over frame (10), and bracket (8) middle part is articulated and connected with Change-over frame (10); Described Change-over frame (10) and bottom bracket (14) are articulated and connected, and are provided with pitching oil cylinder (16) between bracket (8) afterbody and bottom bracket (14); Described rig interface (17) is positioned at the below of bottom bracket (14), and rig interface (17) and bottom bracket (14) are rotationally connected; Described forward beam assembly (5) comprises fixture block (503) on forward beam (501), second, second time fixture block (504) and the second base plate (505); On described second, fixture block (503), second time fixture block (504) are connected by the 3rd bolt (502) with the second base plate (505), and described second base plate (505) is connected with joist (6) by the 4th bolt (506); The U-shaped profile of described forward beam (501), is provided with propelling cylinder (3) in U-shaped; Described forward beam (501) is arranged on the below of the first base plate (102), and forward beam (501) and the first base plate (102) are slidably connected, and forward beam (501) is connected with joist (6) by extending oil cylinder (7); Described forward beam (501) upper end is arranged between fixture block on first (103) and first time fixture block (104), and forward beam (501) lower end is arranged between fixture block on second (503) and second time fixture block (504).
2. the multiple degrees of freedom switching device of advanced rig in shield excavation machine according to claim 1, it is characterized in that, described advanced rig installed part (1) comprises fixture block (103) and first time fixture block (104) on the first base plate (102), first, described first base plate (102) is fixedly connected with rig (101), and on the first base plate (102), first, fixture block (103) is connected by the second bolt (105) with first time fixture block (104).
3. the multiple degrees of freedom switching device of advanced rig in shield excavation machine according to claim 1, it is characterized in that, described bracket (8) is positioned at the bottom of joist (6), bracket (8) comprises tray plate (801), the first hinge ear (802) and the second hinge ear (803), and the first hinge ear (802) and the second hinge ear (803) are fixed on tray plate (801) bottom; Described first hinge ear (802) is articulated and connected with Change-over frame (10), and described second hinge ear (803) is articulated and connected with pitching oil cylinder (16).
4. the multiple degrees of freedom switching device of advanced rig in shield excavation machine according to claim 1, it is characterized in that, described bottom bracket (14) is provided with otic placode (1401), the first screwed hole (1402), the second screwed hole (1403), center hole (1404) and lateral opening (1405); Described second screwed hole (1403) and Change-over frame (10) are hinged, and otic placode (1401) and pitching oil cylinder (16) are articulated and connected.
5. the multiple degrees of freedom switching device of advanced rig in shield excavation machine according to claim 1, it is characterized in that, described rig interface (17) is arranged on the movable collar tie beam (1701) of duct piece assembling machine, rig interface (17) is provided with positioning cylinder (1702), the 3rd screwed hole (1703), the first stiffener (1704), the second stiffener (1705), positioning cylinder (1702) is fixed on the first stiffener (1704), and the second stiffener (1705) is arranged on the side of movable collar tie beam (1701); Described positioning cylinder (1702) is connected by the 5th bolt (12) with the upper center hole (1404) of bottom bracket (14), and described 3rd screwed hole (1703) is connected with lateral opening (1405) on bottom bracket (14) by the 6th bolt (18); Described second stiffener (1705) is connected with adjustment screw (15) by the first screwed hole (1402).
CN201410517608.1A 2014-09-30 2014-09-30 The multiple degrees of freedom switching device of advanced rig in shield excavation machine Active CN104265314B (en)

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CN107435541B (en) * 2017-09-18 2023-04-25 中铁工程装备集团有限公司 TBM with pipe shed construction capability and construction method thereof
CN108286439B (en) * 2018-03-26 2023-08-15 中铁工程装备集团有限公司 Portable leading rig of shield constructs machine carried type
CN112324446B (en) * 2020-09-30 2021-10-22 中铁十四局集团有限公司 Shield tunneling machine for weak stratum and construction method
CN112343606B (en) * 2020-11-12 2023-10-13 上海隧道工程有限公司 Pipe jacking machine advanced grouting device capable of performing inclined grouting and grouting method
CN114876537A (en) * 2022-07-11 2022-08-09 湖南鹏翔星通汽车有限公司 Anchor drilling and grouting integrated system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721066A1 (en) * 1994-06-09 1995-12-15 Alp Westf Berg & Tunneltechnik Underground armoured tunnel drilling machine
CN102146770A (en) * 2011-01-30 2011-08-10 广西恒日科技有限公司 Drill boom beam structure of propelling beam capable of rotating by 360 degrees
CN203742609U (en) * 2013-12-23 2014-07-30 中铁工程装备集团有限公司 Multifunctional tunneling machine
CN203808852U (en) * 2014-03-25 2014-09-03 杭州海聚动力科技有限公司 Detachable leading drilling machine applicable to shield tunneling machine
CN204225894U (en) * 2014-09-30 2015-03-25 中铁工程装备集团有限公司 The multiple degrees of freedom switching device of advanced rig in shield excavation machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03107096A (en) * 1989-09-20 1991-05-07 Hitachi Constr Mach Co Ltd Shield drilling machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2721066A1 (en) * 1994-06-09 1995-12-15 Alp Westf Berg & Tunneltechnik Underground armoured tunnel drilling machine
CN102146770A (en) * 2011-01-30 2011-08-10 广西恒日科技有限公司 Drill boom beam structure of propelling beam capable of rotating by 360 degrees
CN203742609U (en) * 2013-12-23 2014-07-30 中铁工程装备集团有限公司 Multifunctional tunneling machine
CN203808852U (en) * 2014-03-25 2014-09-03 杭州海聚动力科技有限公司 Detachable leading drilling machine applicable to shield tunneling machine
CN204225894U (en) * 2014-09-30 2015-03-25 中铁工程装备集团有限公司 The multiple degrees of freedom switching device of advanced rig in shield excavation machine

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